The ornamental design for a clasp for surrounding and squeezing a flexibletube, as shown and described.
FIG. 1 is a perspective view showing the front, top and left side of my new design for a clasp for surrounding and squeezing a flexible tube, shown in a closed and locked position;
FIG. 2 is a perspective view thereof in an open and unlocked position;
FIG. 3 is a perspective view showing the rear, bottom and left side thereof in the open and unlocked position;
FIG. 4 is a perspective view showing the front, top and left side thereof in the closed and locked position, the broken lines illustrating a flexible tube depicting environmental subject matter and forming no part of my design;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a front elevational view thereof;
FIG. 8 is a rear elevational view thereof;
FIG. 9 is a left side elevational view thereof; and,